So do we need the tire pressure sensors on winter rims? I know on some cars the light in the dash stays lit if no sensors are on the rims... no big deal if you check your tire pressure with a gauge from time-to-time.

i wouldn't worry about the sensors, not worth the hassle

wheels with no sensor just makes the light blink a few times at start up, then stays lit, it's pretty small so it's not distracting, and there's no chimes...

So do we need the tire pressure sensors on winter rims? I know on some cars the light in the dash stays lit if no sensors are on the rims... no big deal if you check your tire pressure with a gauge from time-to-time.

Do we need to buy the sensors from our Jeep dealer, or are there aftermarket ones that will work?

There's aftermarket. IIRC, the ones from the Tire Rack cost something like $40 each... if you buy the wheels and tires from them, they'll install the sensors for free (they don't carry Mopar rims though).

The only issue I had is that the TR installed one of my sensors incorrectly and the thing broke in a few short miles. I had the dealer replace it and Tire Rack refunded me the cost of the sensor (which was less than the $100 the dealer charged me to do it, but I was on the way to the dealer when it happened so I just dealt with it there).

There's aftermarket. IIRC, the ones from the Tire Rack cost something like $40 each... if you buy the wheels and tires from them, they'll install the sensors for free (they don't carry Mopar rims though).

The only issue I had is that the TR installed one of my sensors incorrectly and the thing broke in a few short miles. I had the dealer replace it and Tire Rack refunded me the cost of the sensor (which was less than the $100 the dealer charged me to do it, but I was on the way to the dealer when it happened so I just dealt with it there).

Thanks. I'll try and get aftermarket sensors installed on the rims when I go in and price them out.
Is IIRC a brand name of the sensor? I would like to do some internet research on them and see if I can get them from a couple of suppliers I know.